missing chap7/client-slow-write #7
Description
In chapter 7, we are instructed to use a custom client to make sure our server programs work as expected.
You can find the client code in the chap7/client-slow-write directory of the source code repository.
However, the source code available here and on the support page does not include such a directory.
FYI: until the official code is released, I'd like to share my code for those who want to know a workaround.
// chapter7/client-slow-write/main.go
package main
import (
"fmt"
"io"
"log"
"net/http"
"os"
"time"
)
func longRunningProcess(w *io.PipeWriter) {
for i := 0; i <= 10; i++ {
fmt.Fprintf(w, "hello")
time.Sleep(1 * time.Second)
}
w.Close()
}
func main() {
logger := log.New(os.Stdout, "", log.Ldate|log.Ltime)
pipeReader, pipeWriter := io.Pipe()
go longRunningProcess(pipeWriter)
client := &http.Client{}
url := "http://localhost:8080/api/users/"
logger.Println("Starting client request")
resp, err := client.Post(url, "text/plain", pipeReader)
if err != nil {
logger.Fatalf("Error when sending the request: %v\n", err)
}
defer resp.Body.Close()
bytes, err := io.ReadAll(resp.Body)
if err != nil {
logger.Fatalf("Error when reading the body: %v\n", err)
}
logger.Printf("Response body: %s\n", string(bytes))
}